 And Men say in these Countries, that Philosophers some time went upon these Hills, and held to their Noses a Sponge moisted with Water, to have Air; for the Air above was so dry. And above, in the Dust and in the Powder of those Hills, they wrote Letters and Figures with their Fingers. And at the Year's End they came again, and found the same Letters and Figures, the which they had written the Year before, without any Default. Ch. 3 Describing early ascents of Mounts Olympus and Athos.